<template>
    <div>
        <NavBar>
            <div slot="left" class="back" @click="backClick">
                <img src="~assets/img/common/back.svg" alt="">
            </div>
            <div slot="center" class="title">
                <div v-for="(item,index) in titles" :key="index" class="title-item" :class="{active:index===currentIndex}" @click="titleClick(index)">{{item}}</div>
            </div>
        </NavBar>
    </div>
</template>
<script>
import NavBar from 'components/common/navbar/NavBar'
export default {
    name:"DetailNavBar",
    components:{
        NavBar
    },
    data() {
        return {
            titles:['商品', '参数', '评论', '推荐'],
            currentIndex:0
        }
    },
    methods: {
        titleClick(index){
            this.currentIndex=index
            this.$emit('titleClick',index)
        },
        backClick(){
            this.$router.back()
        }
    },
}
</script>
<style scoped>
.title {
display: flex;
    font-size: 13px;
}
.title-item {
    flex: 1;
}
.active {
    color: var(--color-high-text)
}
.back img {
    width: 18px;
    height: 18px;
    margin-top: 12px;
}
</style>